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Posted to dev@tuscany.apache.org by "Simon Laws (JIRA)" <tu...@ws.apache.org> on 2007/11/29 18:25:44 UTC

[jira] Commented: (TUSCANY-1920) SCADomainFinder's getSCADomain() method always returning null object

    [ https://issues.apache.org/jira/browse/TUSCANY-1920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12546810 ] 

Simon Laws commented on TUSCANY-1920:
-------------------------------------

Changes checked in today but I'm leaving this open as it's highlighted that the domain proxy needs refactoring. 

> SCADomainFinder's getSCADomain() method always returning null object
> --------------------------------------------------------------------
>
>                 Key: TUSCANY-1920
>                 URL: https://issues.apache.org/jira/browse/TUSCANY-1920
>             Project: Tuscany
>          Issue Type: Bug
>          Components: Java SCA Core Runtime
>    Affects Versions: Java-SCA-1.0.1
>         Environment: Java 1.5. Windows Vista. Eclipse Europa IDE..
>            Reporter: Jeff Davis
>            Assignee: Simon Laws
>             Fix For: Java-SCA-1.1
>
>
> Using the "calculator-distributed" sample, I start it as instructed in the README file (runDomain, runNodeB etc), and the sample works fine. However, when I leave the domain and nodes running and try running the following class main:
> public class TestRemote {
> 	
> 	public static void main(String[] args) {
> 		SCADomainFinder domainFinder = SCADomainFinder.newInstance();
> 		SCADomain domainProxy;
> 		try {
> 			domainProxy = domainFinder.getSCADomain("http://localhost:8877");
> 			CalculatorService calculatorService = 
> 					domainProxy.getService(CalculatorService.class, "CalculatorServiceComponentA");
> 		    
> 			System.out.println("3 + 2=" + calculatorService.add(3, 2));
> 			
> 		} catch (DomainException e) {
> 			e.printStackTrace();
> 		}
> 	}
> }
> It returns the following error:
> Exception in thread "main" java.lang.NullPointerException
> 	at org.apache.tuscany.sca.node.impl.SCADomainImpl.getServiceReference(SCADomainImpl.java:417)
> 	at org.apache.tuscany.sca.node.impl.SCADomainImpl.getService(SCADomainImpl.java:348)
> 	at node.TestRemote.main(TestRemote.java:17)

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